Lopez introduced Obama at a League of United Latin American Citizens (LULAC) convention in New York today, dressed in a clingy blush-pink silk peplum skirt with a see-through silk top with embroidered applique over the sensitive spots, by Zuhair Murad.

With her hair pulled in a loose up-do framed by tendrils, diamond drop earrings, and blush-pink and black stilettos on her feet, it was the perfect outfit for Lopez to show off weight loss.

Obama, who spoke to the Hispanic civil rights group about education, was less transparent, dressed in what has become a signature FLOTUS look for summer: A belted sleeveless sheath dress in white with a pattern of brilliant blue extra-large flowers. And today, her hair was arranged in a long bob parted in the middle.